Sometimes I Think We’re Alone, and Sometimes I Think We’re Not. In Either Case, the Idea Is Quite Staggering

Arthur C. Clarke? Stanley Kubrick? Christiane Kubrick? Jeremy Bernstein? Porky Pine? Walt Kelly? Frank Interlandi? Carl Sagan? Jerome Agel? Buckminster Fuller? David Shepley? Lee Alvin DuBridge? Anonymous? Quote Investigator: Astronomers have been searching for evidence of extraterrestrial intelligence for more than a century. Is humankind alone in the universe, or is humankind sharing the cosmos …